Differential Feed; Gathered Overlock (1-2.0) - Bernina Bernette Funlock b44 Instruction Manual

DIFFERENTIAL FEED

– Differential feed is a system which "stretches"
or "gathers" the fabric, when the amount of feed
of front feed dogs in relation to the rear feed
dogs is changed.
– The differential feed ratio ranges from 0.6–2.0.
Adjustment is made by means of the differential
dial pictured at left.
– Use of differential feed is very effective in
overedging stretch fabrics and fabrics cut on the
bias.
– Setting "1" is differential dial setting for ratio 1:1.
Gathered Overlock (1
Gathered overlock is most suited for shirring sleeves,
yokes, front and back bodices, skirt hems, etc. in
stretch fabrics such as knits and jersey before
assembling into garment.
• To set the differential dial for gathering
– Set differential feed adjusting dial above setting
"1".
– Setting of adjusting dial depends on material
being sewn as well as the amount of desired
gather.
– Therefore set dial to suit the fabric and test sew
before sewing your garment.
PLEASE NOTE:
For normal overlock stitching, set differential
feed adjusting dial to graduation "1".
2.0)
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